10/31/2013 AT 10:45 AM ET
Then again, she was taping a Christmas TV special.
The former American Idol winner took the stage at the Las Vegas Venetian Wednesday night, belting out songs from her Wrapped in Red album, along with a few of her greatest hits.
At one point Clarkson spoke about how attractive an audience member was. When some shouted out that she was a newly married woman, the singer replied good-naturally, “I will hit on someone and make him jealous I’m just kidding, I love my man.”
Her special, which airs Dec. 11 on NBC, features country stars Blake Shelton, Trisha Yearwood and Reba McEntire.
“I’ve been trying to make a Christmas album since I was a kid,” she told the crowd.